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Simplified inode renumbering.

geesefs-0-30-9
Aaron Jacobs 2015-03-17 13:14:19 +11:00
parent 8e194826f0
commit 064452dcc9
1 changed files with 7 additions and 20 deletions
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27
samples/cachingfs/caching_fs.go
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@ -23,14 +23,6 @@ import (
"golang.org/x/net/context" "golang.org/x/net/context"
) )
// Constants that define the relative offsets of the inodes exported by the
// file system. See notes on the RenumberInodes method.
const (
FooInodeOffset = iota
DirInodeOffset
BarInodeOffset
)
// A file system with a fixed structure that looks like this: // A file system with a fixed structure that looks like this:
// //
// foo // foo
@ -44,18 +36,13 @@ const (
type CachingFS interface { type CachingFS interface {
fuse.FileSystem fuse.FileSystem
// Cause inodes to receive IDs according to the following rules in further // Return the current inode ID of the file/directory with the given name.
// responses to fuse: FooID() fuse.InodeID
// DirID() fuse.InodeID
// * The ID of "foo" is base + FooInodeOffset. BarID() fuse.InodeID
// * The ID of "dir" is base + DirInodeOffset.
// * The ID of "dir/bar" is base + BarInodeOffset. // Cause the inode IDs to change to values that have never before been used.
// RenumberInodes()
// If this method has never been called, the file system behaves as if it
// were called with base set to fuse.RootInodeID + 1.
//
// REQUIRES: base > fuse.RootInodeID
RenumberInodes(base fuse.InodeID)
// Cause further queries for the attributes of inodes to use the supplied // Cause further queries for the attributes of inodes to use the supplied
// time as the inode's mtime. // time as the inode's mtime.